(cur | prev) 00:15, June 22, 2011‎ Tom Sponheim(Talk | contribs)‎ m . . (10,117 bytes)(-3)‎ . . (→‎What is the simplest way to make a thermometer that could show when water has reached a temperature that would kill any microbes in it and make it safe to drink?)

(cur | prev) 21:00, June 13, 2011‎ Tom Sponheim(Talk | contribs)‎ m . . (11,193 bytes)(+1)‎ . . (→‎What is the simplest way to make a thermometer that could show when water has reached a temperature that would kill any microbes in it and make it safe to drink?)

(cur | prev) 20:56, June 13, 2011‎ Tom Sponheim(Talk | contribs)‎ m . . (11,192 bytes)(+851)‎ . . (→‎What is the simplest way to make a thermometer that could show when water has reached a temperature that would kill any microbes in it and make it safe to drink?)